The Old Miri Airport was planned and built in the 1970s, where a demand for a more modern and longer runway was needed to accommodate Fokker 50s and the Boeing 737s for a booming commercial aviation as commercial flying became a more affordable way to travel.

Miri River is the body of water that splits Miri Peninsula and the mainland Miri, flowing out to sea from inland, curving at Lutong Town. In one particularly popular but inaccurate online map service, the river is incorrectly marked as Sungai Baong. Others references online have confused it with Baram River.